Acquisition of Real Estate Assets (Details 1) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Acquisition Of Real Estate Assets Details 1
Investment property equivalents	$ 2,450
Investment in other company	2,668
Total assets acquired at fair value	$ 5,118

Amount of assets acquired at the acquisition date.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant